If someone tries to artificially create a tracklog, then upload it to the GPS for downloading later on as a 'live' track, the date and time data is automatically stripped from the tracklog during the upload to the GPS and will appear as blank fields when the tracklog is downloaded.
Put simply, if the track is downloaded by an 'observer' at the end of the day and the date and time fields contain valid times and dates for the days track, then the track log is a legitimate record of the days flight. If the date and time fields are blank, then the track is a fake. Garmin created it this way for just this purpose.
Ian
----- Original Message ----- From: "David & Justine Olsen" <[EMAIL PROTECTED]>
To: "'Discussion of issues relating to Soaring in Australia.'" <aus-soaring@lists.internode.on.net>
Sent: Wednesday, March 09, 2005 10:06 PM
Subject: RE: [Aus-soaring] Still quiet in here
Have to agree whole heartedly. Especially when it omes to badge claims, we
should be able to use a GPS and an OA. For world records that's a different
matter
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Leigh Bunting Sent: Wednesday, 9 March 2005 8:50 PM To: Discussion of issues relating to Soaring in Australia. Subject: Re: [Aus-soaring] Still quiet in here
Mike Borgelt wrote:
Anyone know the outcomes of the IGC meeting last weekend?
Garmin had a presentation on using commercial GPS units for flight recording
John Roake had posted this:
"I GET THE IMPRESSION that the world movement is fed-up with the restrictions being placed on the use of "off the shelf" GPS for award flights. Garmin have been extremely vociferous in their condemnation of IGC and the current rule, so IGC agreed to let Garmin make a presentation on their complaints at their annual meeting in Lausanne next month. For some unknown reason Garmin have declined the invitation at the last moment. So regardless, a presentation is to proceed on concepts with a view to finding a protocol that will solve the situation - but don't hold your breath for the restrictions to be lifted in the next 12 months. From a personal observation I must say that it is possible (and it has been done) to falsify a barograph trace. Some say it is possible, but not as easy to change the database of a recording GPS. So what? If a pilot has to go to those lengths to achieve his Gold C, who is he fooling? Only himself! And does it matter to the rest of the community?"
-- Leigh Bunting Colonel Light Gardens South Australia <Open Windows and let the bugs in>
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